Eeik jensen



(No Model.)

H. P. P. JENSEN, B. W. WEBB 8: J. JENSEN.

ELEGTRIG BELL.

No. 369,989. Patented Sept. 13, 1887.

ATTESTI INVENTURS.

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M 2915020 may UNirEn STATES HANS PETER FREDERIK JENSEN, BROWN E \VOLSEY XVEBB, AND JENS JENSEN, OF LONDON, COUNTY OF MIDDLESEX, ENGLAND.

ELECTRIC BELL;

Q SPECIFICATION forming part of Letters Patent No. 369,989, dated September 13, 1887.

Application filed March 14, 1887. Serial No. 230,862. (No model.) Patented in England October 3,1882, No. 4,712; in France July 23, 1883, No. 154,650 in Germany February 2t, 1884, No. 25.060, and in Belgium July 15, 1884, No.65,705.

To all whom it may concern.-

Be it known that we, HANS PETER FRED- ERIK JENSEN, BRoWNE WOLSEY WEBB, and J ENs JENSEN, all subj ea s of the Queen of Great Britain, of the city of London, in the county of Middlesex, and in the country of England, have invented certain new and useful Improve ments in Electric Bells, (for which we have obtained a patent in England, dated October 3, 1882, No. 4,712,) and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to electrical devices for operating the clapper or hammer of the chime or church-bell, and also that of the ordinary house-bell, all of which will be fully described hereinafter.

The first part of our invention consists or suspending from beneath the roof or crown of the chime or church bells an electrical device adapted to operate the clapper or hammer.

The second part of our invention consists of an electro-magnet provided with polar extensions at each end, projecting at right angles to the axis of the magnet, the armature carrying the clapper or hammer being carried at or near its center of gravity upon. stud Se qsred prop. erly to a'metallic extension connected with the upper polar extension of the magnet. This metallic extension is provided at its upper end with a vertical extension screw-threaded, and is adapted to pass through a suitable sleeve of insulation, and then receive a corresponding nut, which, when properly mounted, will hold the-magnet and other mechanism connected therewith rigid. To the under side of the sleeve of insulation, referred to above, is secured a metallic spring or strip, the lower end of which is provided with an adjustingscrew'adapted to regulate the throw of the armature, heretofore mentioned.

In the accompanying drawing, the figure represents a vertical section of an ordinary chime or church bell, in which are shown the electrical devices suspended from the crown thereof.

or represents the chime or church bell, provided with the electro-magnet I), having its polar extension 0 0 arranged at right angles to its axis. The upper polar extension, 0, is connected with the metallic extension d, the upper portion of which is provided with the screw-threaded extension 0, which passes through the sleeve of insulation, f, arranged in the crown of the bell. The said screw-threaded extension is adapted to receive the screw-nut 0 when suspending the electromagnetb within the bell. The armature g is pivoted to the metallic extension d by means of the stud d, so as to enable it to vibrate when causing the clapper or hammer g to strike against the shell of the bell. To the under side of the sleeve of insulation, f, is secured the metallic spring or strip h, provided with the adjustingscrew h at its lower end.

Mod as operandi: Whenever it becomes necessary to sound the bell, the operator should press down the push-button c', which will close the circuit at m. The current will then pass through the conductor 1, leading from the positive pole of the battery 11 to the hanger o; thence to the shell of the bell to the magnet 12, through which it passes to the metallic spring on strip h,- thence to the adjusting-screw h, from which it passes to the armature g, to the vertical metallic extension d cand conductor 2, and thence to the negative pole of the battery, thus completing the circuit, which will be broken at p when the armature shall have been attracted to the magnet.

We are aware that it is not new to have bells operated by electricity-such bells, for instance, as those having eleetro-magncts for operating the hammer or clapper thereof.

What we claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a chime or church bell, of electrical devices suspended from the crown thereof and in circuit with a source of electrical energy, the whole adapted to operate the hammer or clapper.

2. The combination,substantially as shown and described, consisting of the chime or church bell provided with the suspended elcctro-magnet having its polar extension at right angles to its axis, adapted to operate an armature carrying ahammer or clapper, and the metallic strip provided with the adjusting-screw, the

whole placed in circuit with a source of electrical energy.

3. Thecombination, substantially as shown and described, consisting of the electromagnet having its polar extension at right angles to its axis, the armatnre carrying the clapper or hammer, having a part of its body encircling the vertical extension of the polar extension and held thereto by a stud, the sleeve of insulation, and the metallicspring or strip with adj listing-screw arranged at the lower end thereof, the whole connected within the crown of the bell, provided with a hanger, the entire structure arranged in circuit with a source of r 5 electrical energy.

In testimony that we claim the foregoing we have hereunto set our hands.

HANS PETER EREDERIK JENSEN. BROWNE, WOTISEY WEBB. JENS JENSEN.

Witnesses to the signature of Jens Jensen:

F. IETERsEN, O. F. HEINETE. 

